Eaton QHCX3020H Miniature Circuit Breaker - UL Listed
Part Number: QHCX3020H
Quick Summary
Eaton QHCX3020H is a thermal-magnetic miniature circuit breaker used to protect 240 V electrical panels in industrial equipment. Engineers often struggle with nuisance trips and cramped panel layouts, which can slow startups and increase maintenance. UL Listed and CSA Certified provide regulatory confidence for electrical assemblies, while the three-pole, cable-in/cable-out design supports durable, scalable control panels. The device's compact form factor and straightforward wiring reduce enclosure footprint and labor during installation. In steady production environments, this translates to lower downtime, easier compliance checks, and predictable protection for critical drives and CNC systems, aligning with reliability-focused automation projects and cost-conscious procurement goals.
Product Information
Extended Description
QHCX3020H Eaton: Eaton Quicklag Type QHCX Industrial Miniature Thermal-Magnetic Circuit Breaker,Miniature circuit breaker,20 A,42 kAIC,Three-pole,240 V,Thermal-magnetic,Cable-in/cable-out,QHCX,Non-interchangeable
Product Name
Eaton QC thermal magnetic circuit breaker
Catalog Number
QHCX3020H
UPC
786679009291
Product Length/Depth
2.9 in
Product Height
3.5 in
Product Width
3.4 in
Product Weight
1 lb
Warranty
1 year
Certifications
UL Listed CSA Certified
Circuit breaker type
QHCX
Connection
Cable-in/cable-out
Number of poles
Three-pole
Type
Miniature circuit breaker
Amperage Rating
20 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
240 V - 240 V
Options
Non-interchangeable
Feature alignments follow a practical pattern: The three-pole, 20 A thermal-magnetic design delivers reliable short-circuit and overload protection with a 42 kAIC interrupt rating, reducing the risk of cascading faults and protecting sensitive drives. Business impact: improved equipment uptime, safer startups, and a lower total cost of ownership due to fewer nuisance trips and less panel rework. Applications: ideal for machine control panels, conveyors, and automated lines where compact, robust protection is required. Feature: Cable-in/cable-out connection enables fast wiring and easy field terminations; Business impact: faster installations and simpler future upgrades; Applications: control cabinets with limited side access. Feature: UL Listed and CSA Certified provide regulatory compliance; Business impact: streamlined procurement and audit readiness, especially in regulated facilities. Applications: industrial automation environments demanding traceable standards. Feature: 2.9 in depth, 3.5 in height, 3.4 in width with a 1 lb weight; Business impact: saves enclosure space and reduces shipping and handling costs; Applications: retrofits and space-constrained control panels. Feature: 20 A rating with 240 V operation and T268 trip type; Business impact: predictable protection for motor starters and control circuits, ensuring consistent performance in hot and dusty environments; Applications: panel assemblies for automation and process lines.
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FAQs
QHCX3020H utilizes a three-pole configuration with a cable-in/cable-out connection, designed for 240 V control panels. For installation, mount the device in a standard 3-pole footprint, connect three phase conductors via the cable-in/cable-out terminals, and secure the breaker with the included mounting provisions. Ensure conductor sizing and torque meet the 20 A rating and follow local codes for wiring methods.
42 kAIC indicates the maximum fault current the breaker can interrupt without weld or mechanical failure. This rating provides a margin for protection in medium-to-heavy industrial circuits, reducing the risk of equipment damage during short circuits. In practice, it supports safer startup of motors and drives and aligns with typical factory electrical distribution requirements.
Yes. With a 20 A rating, 240 V operation, and 42 kAIC interrupt capacity, the QHCX3020H is well-suited for protecting motor control circuits and associated loads in automated lines. Its thermal-magnetic trip (T268) offers reliable protection against overloads and short circuits, helping to prevent motor damage and unplanned downtime in machine areas.
QHCX3020H is UL Listed and CSA Certified, indicating compliance with recognized safety and performance standards. These certifications simplify regulatory acceptance, supplier qualification, and warranty considerations, ensuring the product meets stringent electrical safety requirements in North American industrial environments.
The QHCX3020H offers predictable protection with minimal nuisance trips, reducing downtime and maintenance overhead. Its compact, easy-to-wire design lowers installation costs and enables faster panel upgrades. A 1-year warranty adds peace of mind, while UL Listed and CSA Certified qualifications streamline audits and procurement processes, delivering a favorable total cost of ownership for automation projects.